How much is too much nitrate in the water? Young scientists discuss the question after they run their own nitrate tests. They also consider sources of nitrates and offer explanations for the levels.

By 2018, 63% of US jobs will require a college degree or professional certificate. This is just one of the many great informational points you'll find on this handout, which you can use to inform your student body with the necessary...

Scientific procedures ensure valid data and valid results. Use a water sampling interactive to teach learners the procedures for collecting water samples. The interactive takes users through the process step-by-step with notes of...

Clear water does not mean clean water. A collaborative instructional activity has groups play a board game to identify sources of water pollution and develop strategies for improving water quality. Their investigations include reference...

Can your pupils build a roof that stands the test of time? Use an insightful engineering design project to highlight both materials science and architecture. Scholars either team up or work as individuals to design, create, and test a...

Responsible farming is important for maintaining natural resources. Eager scientists complete a WebQuest to explore what happens to nitrogen when it enters the soil. They learn about the chemical makeup of nitrogen-based molecules...

Dressing for success is not always about looking sharp. Sometimes it is about staying warm and dry. Present your class with an activity that challenges groups of pupils to design a layered material for blizzard conditions. The teams test...

Forensic scientists depend on their observation skills to analyze evidence down to the molecular level. Middle and high schoolers practice making observations and predictions with a series of crime scene activities, which includes a...

Young scholars define energy and identify the different types that exist. They identify places they see, hear or feel energy. They understand the role of engineering in finding and testing sources of energy for the production of...

This is a must-have resource with everything you'll need for studying food safety with your pupils. From handwashing scorecards and cleaning kitchen surfaces to navigating the world of microbes and food-borne illnesses,...

Students explore pH levels of different substances. For this lesson about pH, students work together in three to four groups to test substances. moving between three different stations performing tests on the substances to determine...

In this minerals learning exercise, students answer fifteen multiple choice questions about mineral formation, volcano and mountain formation, mineral tests and properties of minerals.

After nine lessons and activities about energy, here is the final assessment. The 20-questions include multiple choice, multiple choice with justification, short answer, answer analysis, and labeling diagrams to challenge learners.

Young scholars study the basics of aquaculture and how to successfully raise aquatic plants and animals.  In this water lesson students perform water quality tests on fish tanks, record and graph their results. 

Students examine different types of soil have different capacities for retaining rainwater. In this science activity, students determine that if the soil in an area will not hold enough rainwater there may be a flood. Students experiment...

Students review the needs of animals, hypothesize the needs of plants, and set up experiments to test hypotheses.

Economic pressures to produce and harvest in order to meet consumer needs is a very real issue. In small groups, the class uses three guiding questions to research the pressures on tomato growers to harvest at a level that meets the...

Students investigate solar energy by making sun tea.  In this ecology and solar energy activity, students prepare traditional tea and "sun" tea, then record and graph data comparing color, clarity, smell and taste.

First graders identify vegetables and flowers that can be grown from seed.  In this seed sowing lesson, student learn the correct spacing and planting of various types of seeds. Students label plants. 

Amy Smith is an engineer who designs simple and inexpensive solutions to real-world problems. This video produced for Teachers' Domain features her innovative design for testing the safety of drinking water in the developing world.

Learn why scientists use testing kits to study the soil, and find out what chemicals they test.

A clear concise site that defines turbidity, states why it is important, discusses measuring turbidity, and lists natural and human factors that affect the turbidity of water.

This informative site defines turbidity, lists its causes, addresses how much turbidity is allowed in drinking water, examines the consequences of high turbidity, and more.